CN108469292A - Intelligent wheel weighing instrument with TT＆C system - Google Patents
Intelligent wheel weighing instrument with TT＆C system Download PDFInfo
- Publication number
- CN108469292A CN108469292A CN201810644824.0A CN201810644824A CN108469292A CN 108469292 A CN108469292 A CN 108469292A CN 201810644824 A CN201810644824 A CN 201810644824A CN 108469292 A CN108469292 A CN 108469292A
- Authority
- CN
- China
- Prior art keywords
- module
- switch
- microcontroller
- close
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005303 weighing Methods 0.000 title claims abstract description 44
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 28
- 230000005611 electricity Effects 0.000 claims abstract description 15
- 239000003921 oil Substances 0.000 claims abstract description 14
- 230000003750 conditioning effect Effects 0.000 claims abstract description 10
- 239000000446 fuel Substances 0.000 claims abstract description 8
- 238000002347 injection Methods 0.000 claims abstract description 6
- 239000007924 injection Substances 0.000 claims abstract description 6
- 238000012545 processing Methods 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 34
- 230000001681 protective effect Effects 0.000 claims description 16
- 238000002955 isolation Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 6
- 230000033228 biological regulation Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims 1
- 230000008450 motivation Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 8
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000004891 communication Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
- G01G19/025—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles wheel-load scales
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
- G01G19/04—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing railway vehicles
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2604—Test of external equipment
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The present invention provide one kind can automatic collection, calculating and storage measurement data, with piston stroke defencive function intelligent electric wheel weighing instrument.TT＆C system includes power module, micro controller module, pressure detecting module, motor control module, lifting stroke protection module etc.；Signal conditioning circuit is accessed by fuel injection pressure signal line and connector for detecting the pressure sensor of oil pressure in hydraulic oil pipe in pressure detecting module, the analog signal that the signal conditioning circuit exports pressure sensor is filtered and amplitude limiting processing is output to analog-digital converter, and pressure signal, which is converted into digital quantity, is input to microcontroller；It lifts in stroke protection module, left piston stroke accesses the input port P1.2 of microcontroller close to switch, right piston stroke close to switch in parallel by the 4th photoelectric isolating circuit；When the piston of left or right hydraulic cylinder is moved down into extreme position, left or right piston stroke sends out signal close to switch, makes motor dead electricity by microcontroller, stops motor rotation.
Description
Technical field
The present invention relates to wheel weighing instrument more particularly to a kind of intelligent wheel weighing instruments with TT＆C system.
Background technology
Wheel weighing instrument (rail truck wheel load determinator) be it is a kind of by measure the single wheel loading amount of railway freight car come
Loading capacity, unbalance loading and the instrument of weighting for calculating railway freight-car, dedicated for Transform of Railway Freight Transport Station, to ensure railway freight car
Traffic safety.The related technology of wheel weighing instrument is required to do in JJG 1111-2015 rail truck wheel load determinator vertification regulations
Regulation.Existing wheel weighing instrument is divided into crane boom and oil hand pump two parts, is connected by hydraulic oil pipe, and one people is lifting when measurement
Frame is filled under wheel, another human hand pressure oil pump, and oil pressure is measured by pointer hydralic pressure gauge, is converted into wheel weight, is then manually calculated goods
Loading capacity, unbalance loading and the weighting of vehicle.Existing wheel weighing instrument operation is laborious, and working efficiency is low, and measurement error is big, is affected by human factors
Greatly.The electronic wheel weighing instrument motor drive hydraulic oil pump developed in recent years, can reduce labor intensity, and have certain detection
Display function, but intelligence degree is insufficient, is easy to be out of order, be easily damaged, reliability is too poor.
Invention content
The technical problem to be solved by the present invention is to：There is provided one kind can be according to computer program automatic control survey mistake
Journey, automatic collection, calculating and storage measurement data, and the intelligent electric wheel weighing instrument with piston stroke defencive function.
To achieve the above object, the technical scheme is that：
The intelligent wheel weighing instrument with TT＆C system of the present invention, including main box 105, left crane boom 113, right crane boom
131, motor 102, left crane boom 113, right crane boom 131 bottom be respectively arranged with left hydraulic cylinder 117, right hydraulic cylinder
127, left hydraulic cylinder 117, right hydraulic cylinder 127 piston extend downwardly left crane boom 113, right crane boom 131；In main box
There are pinion unit 106, hydraulic oil pump 108, hydraulic oil pipe 112, pressure sensor 111；Motor 102 passes through pinion unit
106 driving hydraulic oil pumps 108；Hydraulic oil pump 108 passes through hydraulic oil pipe 112 and left hydraulic cylinder 117,127 phase of right hydraulic cylinder
Connection, to drive piston to move；
The TT＆C system include the power module 1 to each module for power supply, micro controller module 2, pressure detecting module 3,
Memory module 6, display module 7, motor control module 8, operation button module 9, lifting stroke protection module 10；
The micro controller module 2 includes STC15F2K32S2 microcontrollers；
The pressure detecting module 3 include pressure sensor 111, pressure sensor connector 32, signal conditioning circuit 33,
Analog-digital converter 34, clock circuit 35, reference voltage source 36；Pressure sensor 111 for detecting oil pressure in hydraulic oil pipe 112
It is installed on the hydraulic oil pipe 112 in main box, signal conditioning circuit 33 is accessed by fuel injection pressure signal line 104 and connector 32,
The analog signal that the signal conditioning circuit 33 exports pressure sensor is filtered and amplitude limiting processing is output to analog-to-digital conversion
Pressure signal is converted into digital quantity and is input to microcontroller by device 34, the analog-digital converter 34；The clock circuit 35 is mould
Number converter 34 provides work clock, and the reference voltage source 36 is that analog-digital converter 34 provides reference voltage；
The memory module 6 uses Electrically Erasable Programmable Read-Only Memory, passes through the input of serial line interface and microcontroller
Output port connects；
The display module 7 includes display screen 136, the input and output that display screen 136 passes through serial line interface and microcontroller
Port connects；
The motor control module 8 includes relay 81, relay drive circuit 82, the first photoelectric isolating circuit 83, uses
In judge wheel lifted off rail tread lifting detection close to switch 123, external power interface 85, motor interface 86, micro-control
The output port P1.3 of device processed controls relay drive circuit 82 by the first photoelectric isolating circuit 83, and the normally opened of relay 81 touches
102 power supply of point control motor is switched on or switched off, and lifting detection is accessed close to switch 123 by the second photoelectric isolating circuit 87
The input port P1.1 of microcontroller, when wheel is lifted off rail tread, lifting detection sends out signal, micro-control close to switch 123
Device module processed detects the signal, and control relay 81 is realized and is automatically stopped when wheel lifts successfully so that 102 dead electricity of motor
Motor 102 rotates；
The operation button module 9 is patched including start button 135, inquiry button 132, saving button 133, operation button
Part 92, third photoelectric isolating circuit 93, start button 135, inquiry button 132, saving button 133 pass through operation button connector
92, third photoelectric isolating circuit 93 is respectively connected to input port P2.3, P2.4, P2.5 of microcontroller；
The lifting stroke protection module 10 includes being moved down into extreme position for detecting the piston of left hydraulic cylinder
Left piston stroke close to switch 152, be moved down into for detecting the piston of right hydraulic cylinder the right piston row of extreme position
The close switch 162 of journey, connector 303, the 4th photoelectric isolating circuit 304, the close switch 152 of left piston stroke, right piston stroke
Close to the input port P1.2 in parallel for accessing microcontroller by the 4th photoelectric isolating circuit 304 of switch 162；When left hydraulic cylinder
When the piston of piston or right hydraulic cylinder is moved down into extreme position, left piston stroke close switch 152 or right piston stroke
Signal is sent out close to switch 162, by microcontroller so that 102 dead electricity of motor, stops motor 102 and rotate；
Main tank external surface is equipped with the display screen 136, inquiry button 132, saving button 133, start button 135.
The above-mentioned intelligent wheel weighing instrument with TT＆C system, left sensing chip 154 are fastened on a left side by piston bottom cover 159 with screw
The piston of hydraulic cylinder 117；The side of left sensing chip 154, which is folded upward at, to be extend into left protective device mounting hole,
Left piston stroke is installed close to switch 152 in left protective device mounting hole, left piston stroke passes through left piston close to switch 152
Stroke signal line 114 is electrically connected with microcontroller；When the piston of left hydraulic cylinder 117 is moved down into extreme position, left sense
Piece 154 is answered to be moved close to left piston stroke close at 152 position of switch, left piston stroke sends out signal close to switch 152, leads to
It crosses microcontroller and makes 102 dead electricity of motor, stop operating；
Right sensing chip 164 is fastened on the piston of right hydraulic cylinder 127 by piston bottom cover 159 with screw；Right sensing chip
164 side, which is folded upward at, to be extend into right protective device mounting hole, and right piston is equipped in right protective device mounting hole
Stroke is electrically connected by right piston stroke signal line 130 with microcontroller close to switch 162, right piston stroke close to switch 162；
When the piston of right hydraulic cylinder 127 is moved down into extreme position, it is close that right sensing chip 164 is moved close to right piston stroke
At 162 position of switch, right piston stroke sends out signal close to switch 162, by microcontroller so that 102 dead electricity of motor, stops
Rotation.
The above-mentioned intelligent wheel weighing instrument with TT＆C system, guide rod 155 are mounted in left protective device mounting hole, left sense
The folding part that is bent up of piece 154 is answered to stretch into the guide groove extended up and down opened on guide rod 155；The close switch of left piston stroke
152 can be arranged up or down on the left-handed opening holder 153 in the left protective device mounting hole of fixation；
Guide rod 155 is mounted in right protective device mounting hole, and guide rod is stretched into the folding part that is bent up of right sensing chip 164
In the guide groove extended up and down opened on 155；Right piston stroke can be arranged close to switch 162 in the right guarantor of fixation up or down
On right switch bracket 163 in protection unit mounting hole.
The above-mentioned intelligent wheel weighing instrument with TT＆C system, the TT＆C system further include temperature detecting module 4；The temperature
It includes thermistor 41, divider resistance 42, the first mould of the voltage access microcontroller at 41 both ends of thermistor to spend detection module 4
Number ALT-CH alternate channel ADC6 pins.The divider resistance 42 and thermistor 41 are connected on the output end of isolation power module of voltage regulation.
The above-mentioned intelligent wheel weighing instrument with TT＆C system, it further includes supply voltage detection module 5, supply voltage detection
Module 5 includes the first precision resistance 51, the second precision resistance 52, and the voltage at 51 both ends of the first precision resistance accesses microcontroller
Second analog-to-digital conversion channel ADC7 pins, first precision resistance 51, the second precision resistance 52 are being connected on external power supply just
Between pole, cathode, the precision of the precision resistance is 0.1%.
The above-mentioned intelligent wheel weighing instrument with TT＆C system, the Electrically Erasable Programmable Read-Only Memory chip model are
AT24C32, pin SCL are connect with microcontroller output mouth P1.4 pins, pin SDA and microcontroller input/output terminal
Mouth P1.5 pins connection.
The above-mentioned intelligent wheel weighing instrument with TT＆C system, the chip select pin CS and microcontroller of the display screen 136 are defeated
Exit port P3.2 pins connect, and the controlling switch WR that writes of display screen 136 is connect with microcontroller output mouth P3.3 pins, show
The data pin DATA of screen 136 is connect with microcontroller output mouth P3.4 pins.
The above-mentioned intelligent wheel weighing instrument with TT＆C system, the photoelectrical coupler that the third photoelectric isolating circuit 93 uses
Model TLP521-4.
The above-mentioned intelligent wheel weighing instrument with TT＆C system, the photoelectric coupling that the 4th photoelectric isolating circuit 304 uses
Device model EL817.
Beneficial effects of the present invention：
It is of the present invention to have the advantages that the intelligent wheel weighing instrument of TT＆C system is：Electric hoisting railway freight car wheel,
Operator's labor intensity is reduced, wheel is automatically stopped after lifting, automatic data collection, is calculated gross weight, unbalance loading, weighting automatically, is carried
High working efficiency；Use microcontroller for core, to using process to be automated, intelligentized control method, acquisition in real time, place
It manages, display and save measurement result, and measurement report can be printed；And there is piston stroke defencive function, failure is reduced, is carried
High reliability, improves accuracy of measurement.
Description of the drawings
Fig. 1 is the overall construction drawing of the intelligent wheel weighing instrument with TT＆C system；
Fig. 2 is the sectional view of the left piston stroke protecting device of the intelligent wheel weighing instrument with TT＆C system；
Fig. 3 is the upward view of the left piston stroke protecting device of the intelligent wheel weighing instrument with TT＆C system；
Fig. 4 is the sectional view of the right piston stroke protecting device of the intelligent wheel weighing instrument with TT＆C system；
Fig. 5 is the upward view of the right piston stroke protecting device of the intelligent wheel weighing instrument with TT＆C system；
Fig. 6 is the structure diagram of the intelligent wheel weighing instrument TT＆C system with TT＆C system；
Fig. 7 is power module circuit schematic；
Fig. 8 is micro controller module circuit diagram；
Fig. 9 is pressure detecting module circuit schematic；
Figure 10 is temperature detecting module circuit diagram；
Figure 11 is supply voltage detection module circuit diagram；
Figure 12 is storage module circuit schematic；
Figure 13 is display module circuit diagram；
Figure 14 is motor control module circuit diagram；
Figure 15 is operation button module circuit schematic；
Figure 16 is lifting stroke protection module circuit diagram；
Figure 17 is the structural schematic diagrams such as left crane boom, right crane boom in Fig. 1.
In figure：Power module 1, micro controller module 2, pressure detecting module 3, temperature detecting module 4, supply voltage detection
Module 5, memory module 6, display module 7, motor control module 8, operation button module 9, lifting stroke protection module 10；
Power interface 11, isolation regulated power supply integrated package 12, light emitting diode 13；
Communication interface 21；
Pressure sensor 111, pressure sensor connector 32, signal conditioning circuit 33, analog-digital converter 34, clock circuit
35, reference voltage source 36；
Thermistor 41, divider resistance 42；
First precision resistance 51, the second precision resistance 52；
Display screen 136, backlight drive control circuit 72；
Relay 81, relay drive circuit 82, the first photoelectric isolating circuit 83, the close switch 123 of lifting detection, outside
Power interface 85, motor interface 86, the second photoelectric isolating circuit 87；
Start button 135, inquiry button 132, saving button 133, operation button connector 92, third photoelectric isolating circuit
93,
101- power packs, 102- motor, 103- motor wirings, 104- fuel injection pressure signal lines, 105- main boxes, 106- teeth
Take turns power train, 107- oil return valve knobs, 108- hydraulic oil pumps, 109- magnetic blocks, 110- sliding sleeves, 112- hydraulic oil pipes, 113-
Left crane boom, 114- left piston stroke signal lines, the left oil ducts of 115-, 116- left piston stroke protecting devices, the left hydraulic oil of 117-
Cylinder, 118- pistons, 119- spherical surfaces top, 120- springs, 121- lift detection lug, 122- drag links, and 124- lifts signal wire,
125- adjusting sleeves, 126- tommy bars, the right hydraulic cylinders of 127-, 128- right piston stroke protecting devices, the right oil ducts of 129-, the right work of 130-
Plug stroke signal line, the right crane booms of 131-, 134- electronic circuit boards, 137- printer wiring, 138- power pack wiring, 139- are special
With printer, the left cover sheets of 151-, 152- left piston strokes are close to be switched, 153- left-handed opening holders, the left sensing chips of 154-,
155- guide rods, 157- sealing rings, 158- nut baffle rings, 159- piston bottom covers, the right cover sheets of 161-, 162- right piston strokes
Close to switch, the right switch brackets of 163-, the right sensing chips of 164-, 303- connectors, the 4th photoelectric isolating circuits of 304-.
Specific implementation mode
To keep the purpose of the present invention, technical solution of greater clarity, With reference to embodiment and with reference to attached drawing,
The present invention is described in more detail.
As shown in Fig. 1,17, a kind of intelligent wheel weighing instrument with TT＆C system, including main box 105, left crane boom 113,
Right crane boom 131, drag link 122, motor 102, power pack 101, dedicated printer 139.
There are pinion unit 106, hydraulic oil pump 108, hydraulic oil pipe 112, pressure sensor 111, electric wire in main box
Road plate 134, fuel injection pressure signal line 104, left piston stroke signal line 114, lifting signal wire 124, power pack wiring 138, motor
Wiring 103, printer wiring 137.
Main tank external surface is pressed equipped with oil return valve knob 107, motor 102, display screen 136, inquiry button 132, preservation
Key 133, start button 135, the close switch 123 of lifting detection, aviation socket.
There are left hydraulic cylinder 117, left oil duct 115, piston 118, spherical surface top 119, left piston stroke on left crane boom 113
Protective device 116 has right hydraulic cylinder 127, right oil duct 129, piston 118, spherical surface top 119, right piston on right crane boom 131
Stroke protecting device 128.
Equipped with adjusting sleeve 125, tommy bar 126, sliding sleeve 110, spring 120, lifting detection lug 121, magnetic block on drag link
109, left crane boom 113 is fixedly connected with main box 105, and right crane boom 131 is connect with 105 axis pin of main box, 122 liang of drag link
End is connect with left crane boom and right crane boom axis pin.Power pack 101 and dedicated printer 139 pass through cable and aviation plug and master
Babinet 105 is connected, and electronic circuit board 134 forms TT＆C system with related electronic devices.
As shown in Figure 2 and Figure 3, the left piston stroke protecting device 116 includes left hydraulic cylinder 117, piston 118, piston
The close switch 152 of bottom cover 159, left sensing chip 154, guide rod 155, left-handed opening holder 153, left piston stroke, left piston stroke
Signal wire 114, left cover sheet 151.When lifting wheel, piston 118 extends downwardly, when reaching safety travel limit value, left induction
Piece 154 makes left piston stroke send out signal close to switch 152, and lifting stroke protection is passed to by left piston stroke signal line 114
Module makes motor stall, hydraulic oil pump fuel cut-off, prevents the damage of left hydraulic cylinder lower thread.Left piston stroke connects
Nearly switch 152 is fastened on screw on left-handed opening holder 153, upper and lower position is adjusted, to change safety travel limit value.Left induction
Piece 154 is fastened on piston by piston bottom cover 159 with screw.Guide rod 155 can limit left sensing chip 154 and piston 118
Rotation.
As shown in Figure 4, Figure 5, the right piston stroke protecting device 128 includes right hydraulic cylinder 127, piston 118, piston
The close switch 162 of bottom cover 159, right sensing chip 164, guide rod 155, right switch bracket 163, right piston stroke, right piston stroke
Signal wire 130, right cover sheet 161.When lifting wheel, piston 118 extends downwardly, when reaching safety travel limit value, right induction
Piece 154 makes right piston stroke send out signal close to switch 162, and lifting stroke protection is passed to by right piston stroke signal line 130
Module makes motor stall, hydraulic oil pump fuel cut-off, prevents the damage of right hydraulic cylinder lower thread.Right piston stroke connects
Nearly switch 162 is fastened on screw on right switch bracket 163, upper and lower position is adjusted, to change safety travel limit value.Right induction
Piece 164 is fastened on piston by piston bottom cover 159 with screw.Guide rod 155 can limit right sensing chip 164 and piston 118
Rotation.
As shown in fig. 6, a kind of wheel weighing instrument TT＆C system, including power module 1, micro controller module 2, pressure detecting module
3, temperature detecting module 4, supply voltage detection module 5, memory module 6, display module 7, motor control module 8, operation button
Module 9, lifting stroke protection module 10.
As shown in fig. 7, power module 1 includes power interface 11, isolation regulated power supply integrated package 12, light emitting diode 13,
External power supply accesses the input terminal of isolation regulated power supply integrated package 12 through power interface 11, and the defeated of regulated power supply integrated package 12 is isolated
Go out and give each mould of entire TT＆C system chip power supply in the block, 12 output end of isolation regulated power supply integrated package, which is equipped with, is used for power supply instruction
Light emitting diode 13, the power interface be two core aviation plugs, the isolation regulated power supply integrated package 12 be WRB1205P.
As shown in figure 8, micro controller module 2 is connected by its input/output interface with each function module, and equipped with communication
Interface 21 is for downloading control software and data communication.The microcontroller is STC15F2K32S2 microcontrollers, and the communication connects
Mouth 21 is three core aviation plugs.Micro controller module is the core of TT＆C system, uses microcontroller for core, for wheel weighing instrument
Operation principle be used for process automated, intelligentized control method, and can acquire, handle in real time, display and save wheel weight
Data, and testing result can be printed.
As shown in figure 9, pressure detecting module 3 is connected by the input/output interface of serial line interface and microcontroller, realize
Pressure detecting.Specifically, pressure detecting module 3 includes pressure sensor 111, pressure sensor connector 32, signal condition
Circuit 33, analog-digital converter 34, clock circuit 35, reference voltage source 36.The pressure sensor 111 is installed on main box 105
On interior hydraulic oil pipe 112, TT＆C system is accessed by pressure sensor connector 32.The signal conditioning circuit 33 is to pressure
The analog signal that sensor 111 exports is filtered and amplitude limiting processing, protects analog-digital converter, wherein signal filter circuit is RC
Low-pass filter, amplitude limiting processing use Schottky-barrier diode.The analog-digital converter chip model is AD7705, by pressure
Signal is converted into digital quantity and is read by microcontroller, and is connected by the input/output interface of serial line interface and microcontroller.Institute
It states clock circuit 35 and provides work clock for analog-digital converter, the passive quartz crystal oscillator using 2.4576MHz and periphery
Device designs, and is connect respectively with MCLK IN and MCLK the OUT pins of analog-digital converter.The reference voltage source chip model is
REF192 provides reference voltage for analog-digital converter.The clock pins CSLK of the analog-digital converter and microcontroller
The output port P2.1 pins connection of the connection of output port P2.0 pins, chip select pin CS and microcontroller, reset pin RESET
Connect with microcontroller output mouth P2.2 pins, data-out pin DIN is connect with microcontroller input mouth P3.5 pins,
Data output pins DOUT is connect with microcontroller output mouth P3.6 pins, DSR pin DRDY and microcontroller are defeated
Inbound port P3.7 pins connect.The output pin OUT of the reference voltage source 36 connects with the REF IN+ pins of analog-digital converter 34
It connects.
As shown in Figure 10, temperature detecting module 4 includes thermistor 41, divider resistance 42, the electricity at 41 both ends of thermistor
The first analog-to-digital conversion channel ADC6 pins into microcontroller are crimped, realize temperature detection.The divider resistance 42 and temperature-sensitive electricity
Resistance 41 is connected on the output end of the isolation power module of voltage regulation.
As shown in figure 11, supply voltage detection module 5 includes the first precision resistance 51, the second precision resistance 52, the first essence
Cipher telegram hinders the second analog-to-digital conversion channel ADC7 pins of the voltage access microcontroller at 51 both ends, realizes supply voltage detection.Institute
State the first precision resistance 51, the second precision resistance 52 is connected between the anode of external power supply, cathode, the essence of the precision resistance
Degree is 0.1%.
As shown in figure 12, memory module 6 is realized using Electrically Erasable Programmable Read-Only Memory, passes through serial line interface and micro-control
The input/output port of device processed connects, and realizes the record of detection data.The Electrically Erasable Programmable Read-Only Memory chip model
It is connect with microcontroller output mouth P1.4 pins for AT24C32, pin SCL, pin SDA and microcontroller input and output
Port P1.5 pins connection.
As shown in figure 13, display module 7 includes display screen 136, backlight drive control circuit 72, and display screen 136 passes through string
The input/output port of line interface and microcontroller connects, and realizes the display of detection data.The chip select pin of the display screen 136
CS is connect with microcontroller output mouth P3.2 pins, and display screen 136 writes controlling switch WR and microcontroller output mouth
P3.3 pins connect, and the data pin DATA of display screen 136 is connect with microcontroller output mouth P3.4 pins.The backlight is driven
Dynamic control circuit 72 is designed using PNP type triode, and transistor base is controlled by the output port P5.4 of microcontroller, can basis
It needs to light or extinguish.The PNP type triode model 8550.
As shown in figure 14, motor control module 8 includes relay 81, relay drive circuit 82, the first Phototube Coupling electricity
Road 83, the close switch 123 of lifting detection, external power interface 85, motor interface 86.The output port P1.3 of microcontroller passes through
First photoelectric isolating circuit 83 controls relay drive circuit 82, normally opened contact control 102 power supply of motor of relay 81
It is switched on or switched off.Lifting detection accesses the input port of microcontroller close to switch 123 by the second photoelectric isolating circuit 87
P1.1, control motor 102 stops when realization lifts successfully.The external power interface 11 is used to connect power pack wiring 138,
It is connected with relay normally open contact side.The motor 102 is installed on the shell of main box 105, passes through the power pack
Wiring 138, motor interface 86 are connected with the relay normally open contact other side.The relay drive circuit uses NPN triode
Design, model 8050.The photoelectric coupling type that first photoelectric isolating circuit, 83 and second photoelectric isolating circuit 87 uses
Number be EL817.
As shown in figure 15, operation button module 9 includes start button 135, inquiry button 132, saving button 133, operation
Button connector 92, third photoelectric isolating circuit 93, start button 135, inquiry button 132, saving button 133 pass through third light
Electric isolating circuit 93 is respectively connected to input port P2.3, P2.4, P2.5 of microcontroller, the start button 135, inquiry button
132, saving button 133 is installed on the left end shell of main box 105, and TT＆C system is accessed by operation button connector 92.
The photoelectrical coupler model TLP521-4 that the third photoelectric isolating circuit 93 uses.
As shown in figure 16, lifting stroke protection module 10 includes that left piston stroke is close close to switch 152, right piston stroke
Switch 162, connector 303, the 4th photoelectric isolating circuit 304.Left piston stroke approaches switch 152, right piston stroke is approached and opened
The 162 input port P1.2 in parallel for accessing microcontroller by the 4th photoelectric isolating circuit 304 are closed, realize lifting stroke protection, institute
State the front end that left piston stroke is installed on left crane boom 113 close to switch 152, near piston 118, right piston stroke is close to switching
162 are installed on the front end of right crane boom 131, near piston 118, pass through left piston stroke signal line 114, right piston stroke signal
Line 130, connector 303 access TT＆C system.The photoelectrical coupler model that 4th photoelectric isolating circuit 304 uses
EL817。
According to above-mentioned technical proposal, the intelligent wheel weighing instrument overall operation step with TT＆C system is described as follows：
After the power interface of intelligent wheel weighing instrument with TT＆C system connects external power supply, system starts, power supply mould
Block exports chip power supply of the stable DC source to all modules in TT＆C system, and light emitting diode is lighted, and is indicating power supply just
Often.Microcontroller initializes, supply voltage detection module and temperature detecting module work, detection external power supply voltage, current temperature
Degree, into the state to be measured such as standby.The one end for lifting detection lug 121 swings setting on drag link, and can be along cross
Pull rod slides axially.When user presses start button 135, microcontroller detects that start button 135 is pressed, and passes through motor control
Molding block controls motor 102 and works, and high pressure oil is pumped into 117 He of left hydraulic cylinder by hydraulic oil pump 108 by hydraulic oil pipe 112
Right hydraulic cylinder 127, the left crane boom 113 of wheel weighing instrument and right crane boom 131 come directly towards 119 lifting wheels by two spherical surfaces, work as vehicle
Wheel is when lifting off rail tread, spring 120 of the lifting detection lug 121 on being sleeved on drag link 122 act under along drag link to
The right side slides through wheel, and the magnetic block 109 on lifting detection lug 121 is arranged and is moved to lifting detection close at switch 123, lifts
It rises detection to act close to switch 123, microcontroller detects lifting detection close to the state of switch 123, and control motor 102 stops
Only, pressure detecting module 3 detects the pressure in hydraulic oil pipe 112, microcontroller by pressure sensor 111, fuel injection pressure signal line 104
Device reads transformation result, and is converted into wheel tuple value and is sent to display screen 136 by display module 7, when user presses preservation
When key 133, microcontroller detects that saving button 133 is pressed, and wheel tuple value is saved in memory module 6.
In the standby waiting measuring state of TT＆C system, when pressing inquiry button 132 such as user, microcontroller, which detects, to be looked into
It askes button 132 to press, microcontroller reads the wheel tuple value preserved from memory module 6, is sent to by display module 7 aobvious
Display screen 136 is shown.
When motor 102 works, to prevent two oil cylinders from damaging, ensure wheel weighing instrument safety, it is necessary to control two-piston stroke.
When piston stroke reaches safety margins, left piston stroke is acted close to switch 152 or right piston stroke close to switch 162, lifting
Microcontroller detects that the state of travel switch, control motor 102 stop operating in stroke protection module 10.
Claims (10)
1. a kind of intelligent wheel weighing instrument with TT＆C system, including main box (105), left crane boom (113), right crane boom
(131), motor (102), left crane boom (113), right crane boom (131) bottom be respectively arranged with left hydraulic cylinder (117),
Right hydraulic cylinder (127), left hydraulic cylinder (117), right hydraulic cylinder (127) piston extend downwardly left crane boom (113), right
Crane boom (131)；There are pinion unit (106), hydraulic oil pump (108), hydraulic oil pipe (112), pressure sensor in main box
(111)；Motor (102) drives hydraulic oil pump (108) by pinion unit (106)；Hydraulic oil pump (108) passes through hydraulic oil
Pipe (112) is connected with left hydraulic cylinder (117), right hydraulic cylinder (127), to drive piston to move；It is characterized in that：
The TT＆C system includes the power module (1), micro controller module (2), pressure detecting module to each module for power supply
(3), memory module (6), display module (7), motor control module (8), operation button module (9), lifting stroke protection module
(10)；
The micro controller module (2) includes STC15F2K32S2 microcontrollers；
The pressure detecting module (3) includes pressure sensor (111), pressure sensor connector (32), signal conditioning circuit
(33), analog-digital converter (34), clock circuit (35), reference voltage source (36)；For detecting hydraulic oil pipe (112) interior oil pressure
Pressure sensor (111) is installed on the hydraulic oil pipe in main box (112), passes through fuel injection pressure signal line (104) and connector
(32) access signal conditioning circuit (33), the analog signal that the signal conditioning circuit (33) exports pressure sensor are filtered
Wave and amplitude limiting processing are output to analog-digital converter (34), and pressure signal is converted into digital quantity and inputted by the analog-digital converter (34)
To microcontroller；The clock circuit (35) is that analog-digital converter (34) provides work clock, and the reference voltage source (36) is
Analog-digital converter (34) provides reference voltage；
The memory module (6) uses Electrically Erasable Programmable Read-Only Memory, the input by serial line interface and microcontroller defeated
Exit port connects；
The display module (7) includes display screen (136), and display screen (136) is defeated by the input of serial line interface and microcontroller
Exit port connects；
The motor control module (8) includes relay (81), relay drive circuit (82), the first photoelectric isolating circuit
(83), for judge wheel lifted off rail tread lifting detection close to switch (123), external power interface (85), motor
The output port P1.3 of interface (86), microcontroller controls relay drive circuit by the first photoelectric isolating circuit (83)
(82), the normally opened contact of relay (81) controls being switched on or switched off for motor (102) power supply, the close switch of lifting detection
(123) the input port P1.1 that microcontroller is accessed by the second photoelectric isolating circuit (87), when wheel is lifted off rail tread,
Lifting detection sends out signal close to switch (123), and micro controller module detects the signal, and control relay (81) is so that electronic
Machine (102) dead electricity is realized and is automatically stopped motor (102) rotation when wheel lifts successfully；
The operation button module (9) includes start button (135), inquiry button (132), saving button (133), operation button
Connector (92), third photoelectric isolating circuit (93), start button (135), inquiry button (132), saving button (133) pass through
Operation button connector (92), third photoelectric isolating circuit (93) be respectively connected to microcontroller input port P2.3, P2.4,
P2.5；
The lifting stroke protection module (10) includes being moved down into extreme position for detecting the piston of left hydraulic cylinder
Left piston stroke is moved down into the right piston row of extreme position close to switch (152), for detecting the piston of right hydraulic cylinder
For journey close to switch (162), connector (303), the 4th photoelectric isolating circuit (304), left piston stroke is close to switch (152), the right side
Piston stroke accesses the input port P1.2 of microcontroller close to switch (162) parallel connection by the 4th photoelectric isolating circuit (304)；When
When the piston of the piston of left hydraulic cylinder or right hydraulic cylinder is moved down into extreme position, the close switch of left piston stroke
(152) or right piston stroke sends out signal close to switch (162), by microcontroller so that motor (102) dead electricity, stops electricity
Motivation (102) rotates；
Main tank external surface is equipped with the display screen (136), inquiry button (132), saving button (133), start button
(135)。
2. the intelligent wheel weighing instrument with TT＆C system told according to claim 1, it is characterized in that：
Left sensing chip (154) is fastened on the piston of left hydraulic cylinder (117) by piston bottom cover (159) with screw；Left induction
The side of piece (154), which is folded upward at, to be extend into left protective device mounting hole, and a left side is equipped in left protective device mounting hole
Piston stroke passes through left piston stroke signal line (114) and micro-control close to switch (152), left piston stroke close to switch (152)
Device electrical connection processed；When the piston of left hydraulic cylinder (117) is moved down into extreme position, left sensing chip (154), which is moved to, to be connect
For nearly left piston stroke close at switch (152) position, left piston stroke sends out signal close to switch (152), passes through microcontroller
Make motor (102) dead electricity, stops operating；
Right sensing chip (164) is fastened on the piston of right hydraulic cylinder (127) by piston bottom cover (159) with screw；Right induction
The side of piece (164), which is folded upward at, to be extend into right protective device mounting hole, and the right side is equipped in right protective device mounting hole
Piston stroke passes through right piston stroke signal line (130) and micro-control close to switch (162), right piston stroke close to switch (162)
Device electrical connection processed；When the piston of right hydraulic cylinder (127) is moved down into extreme position, right sensing chip (164), which is moved to, to be connect
For nearly right piston stroke close at switch (162) position, right piston stroke sends out signal close to switch (162), passes through microcontroller
Make motor (102) dead electricity, stops operating.
3. the intelligent wheel weighing instrument with TT＆C system told according to claim 2, it is characterized in that：
Guide rod (155) is mounted in left protective device mounting hole, and guide rod is stretched into the folding part that is bent up of left sensing chip (154)
(155) in the guide groove extended up and down opened on；Left piston stroke can be up or down arranged in fixation close to switch (152)
On left-handed opening holder (153) in left protective device mounting hole；
Guide rod (155) is mounted in right protective device mounting hole, and guide rod is stretched into the folding part that is bent up of right sensing chip (164)
(155) in the guide groove extended up and down opened on；Right piston stroke can be up or down arranged in fixation close to switch (162)
On right switch bracket (163) in right protective device mounting hole.
4. the intelligent wheel weighing instrument with TT＆C system as described in claim 1, it is characterized in that：The TT＆C system further includes temperature
Spend detection module (4)；The temperature detecting module (4) includes thermistor (41), divider resistance (42), thermistor (41) two
First analog-to-digital conversion channel ADC6 pins of the voltage access microcontroller at end.
5. the intelligent wheel weighing instrument with TT＆C system told according to claim 4, it is characterized in that：The divider resistance (42) and
Thermistor (41) is connected on the output end of isolation power module of voltage regulation.
6. the intelligent wheel weighing instrument with TT＆C system told according to claim 1, it is characterized in that：It further includes supply voltage inspection
Module (5) is surveyed, supply voltage detection module (5) includes the first precision resistance (51), the second precision resistance (52), the first accurate electricity
Second analog-to-digital conversion channel ADC7 pins of the voltage access microcontroller at resistance (51) both ends, first precision resistance (51),
Second precision resistance (52) is connected between the anode of external power supply, cathode, and the precision of the precision resistance is 0.1%.
7. the intelligent wheel weighing instrument with TT＆C system told according to claim 1, it is characterized in that：The electric erazable programmable is only
Read memory chip model AT24C32, pin SCL connect with microcontroller output mouth P1.4 pins, pin SDA and
Microcontroller input/output port P1.5 pins connect.
8. the intelligent wheel weighing instrument with TT＆C system told according to claim 1, it is characterized in that：The display screen (136)
Chip select pin CS is connect with microcontroller output mouth P3.2 pins, and display screen (136) writes controlling switch WR and microcontroller
Output port P3.3 pins connect, and the data pin DATA of display screen (136) is connect with microcontroller output mouth P3.4 pins.
9. the intelligent wheel weighing instrument with TT＆C system told according to claim 1, it is characterized in that：The third Phototube Coupling electricity
The photoelectrical coupler model TLP521-4 that road (93) uses.
10. the intelligent wheel weighing instrument with TT＆C system told according to claim 1, it is characterized in that：4th Phototube Coupling
The photoelectrical coupler model EL817 that circuit (304) uses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810644824.0A CN108469292B (en) | 2018-06-21 | 2018-06-21 | Intelligent wheel weight instrument with measurement and control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810644824.0A CN108469292B (en) | 2018-06-21 | 2018-06-21 | Intelligent wheel weight instrument with measurement and control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108469292A true CN108469292A (en) | 2018-08-31 |
| CN108469292B CN108469292B (en) | 2024-02-09 |
Family
ID=63260105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810644824.0A Active CN108469292B (en) | 2018-06-21 | 2018-06-21 | Intelligent wheel weight instrument with measurement and control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108469292B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113285717A (en) * | 2021-06-04 | 2021-08-20 | 合肥市华达半导体有限公司 | Multifunctional data acquisition device based on 12bit serial ADC |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH418375A (en) * | 1963-02-28 | 1966-08-15 | Deutsche Reichsbahn | Automatic track lifting and tamping machine |
| RU2116630C1 (en) * | 1997-08-11 | 1998-07-27 | Колесник Евгений Николаевич | Gear determining weight of transport vehicles |
| CN102607681A (en) * | 2012-04-24 | 2012-07-25 | 济南金钟电子衡器股份有限公司 | Intelligent whole vehicle weighing platform |
| CN103454097A (en) * | 2013-09-18 | 2013-12-18 | 哈尔滨广瀚新能动力有限公司 | Railway vehicle bogie static load comprehensive detection system |
| CN203376043U (en) * | 2013-05-28 | 2014-01-01 | 上海铁路局科学技术研究所 | Electronic wheel weight tester |
| CN203422232U (en) * | 2013-09-18 | 2014-02-05 | 哈尔滨广瀚新能动力有限公司 | Rail vehicle bogie static load detection system |
| CN203426056U (en) * | 2012-09-06 | 2014-02-12 | 许广立 | Automatic detection equipment for wagon adapter |
| CN208505444U (en) * | 2018-06-21 | 2019-02-15 | 南京林业大学 | Intelligent wheel weighing instrument with TT&C system |
-
2018
- 2018-06-21 CN CN201810644824.0A patent/CN108469292B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH418375A (en) * | 1963-02-28 | 1966-08-15 | Deutsche Reichsbahn | Automatic track lifting and tamping machine |
| RU2116630C1 (en) * | 1997-08-11 | 1998-07-27 | Колесник Евгений Николаевич | Gear determining weight of transport vehicles |
| CN102607681A (en) * | 2012-04-24 | 2012-07-25 | 济南金钟电子衡器股份有限公司 | Intelligent whole vehicle weighing platform |
| CN203426056U (en) * | 2012-09-06 | 2014-02-12 | 许广立 | Automatic detection equipment for wagon adapter |
| CN203376043U (en) * | 2013-05-28 | 2014-01-01 | 上海铁路局科学技术研究所 | Electronic wheel weight tester |
| CN103454097A (en) * | 2013-09-18 | 2013-12-18 | 哈尔滨广瀚新能动力有限公司 | Railway vehicle bogie static load comprehensive detection system |
| CN203422232U (en) * | 2013-09-18 | 2014-02-05 | 哈尔滨广瀚新能动力有限公司 | Rail vehicle bogie static load detection system |
| CN208505444U (en) * | 2018-06-21 | 2019-02-15 | 南京林业大学 | Intelligent wheel weighing instrument with TT&C system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113285717A (en) * | 2021-06-04 | 2021-08-20 | 合肥市华达半导体有限公司 | Multifunctional data acquisition device based on 12bit serial ADC |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108469292B (en) | 2024-02-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104898068B (en) | Portable multi-function ice storing time system and its control method | |
| US20110073822A1 (en) | Hydraulic jack capable of displaying load and overload warning | |
| CN208505444U (en) | Intelligent wheel weighing instrument with TT&C system | |
| CN201787998U (en) | Portable electronic water-level water thermometer | |
| CN108469292A (en) | Intelligent wheel weighing instrument with TT＆C system | |
| CN105206227A (en) | Method for driving LED lamp panel and oil price board control card | |
| CN205102889U (en) | Automatic calibrating installation of fuel tanker aircraft | |
| CN205483062U (en) | Automobile storage battery fuse box detection device | |
| CN205933108U (en) | Fork truck portal load -lifting height limitation system | |
| CN209280186U (en) | Full-automatic twisted force tester | |
| CN205622270U (en) | Sky parking formula charging station | |
| CN208887812U (en) | A kind of window opener chain detecting tool | |
| CN106526314A (en) | Metering module special for charging pile | |
| CN201319049Y (en) | High-tension current mutual-inductor transformation ratio tester | |
| CN206177431U (en) | Electronics pound is used to pig | |
| CN206020499U (en) | A kind of control system of the low voltage power measuring case for being easy to keep in repair | |
| CN212780745U (en) | Intelligent gas collection box of transformer gas relay | |
| CN205427100U (en) | Contactless cable continuity test device | |
| CN205079863U (en) | Storage raw materials temperature measuring device | |
| CN103848212A (en) | Tempered glass online automatic detection device | |
| CN107228969A (en) | Multipurpose electric flow table and control method with different measurement accuracy | |
| CN117007013A (en) | Device and method for detecting vertical height and levelness of two ends of pantograph slide plate frame after pantograph lifting | |
| CN210775658U (en) | Hand-held loop resistance tester | |
| CN210866969U (en) | Integrated measurement display device for nuclear phase handcart of central switch cabinet | |
| CN207033439U (en) | Well liquid Bluetooth transmission memory-type multi-parameter instrument can be identified |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240115 Address after: 210000 No. 99, Wenlan Road, Xianlin University City, Nanjing, Jiangsu Province Applicant after: Nanjing Vocational College of Information Technology Address before: Nanjing City, Jiangsu province 210037 Longpan Road No. 159 Applicant before: NANJING FORESTRY University |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |